Length: 35.5mm Width: 82.5mm (including throttle arm and needle) Height: 38.4mm Diameter: 17mm OD of intake (throat)
13.5mm ID of intake @ widest point (top)
10.1mm ID of intake @ narrowest point (bottom)
11.6mm ID of neck at widest point (bottom)
10.1mm ID of neck at narrowest point (top)
The neck is the part that inserts into the crankcase